flutter_flutter/shell/gpu/gpu_rasterizer.h

55 lines
1.5 KiB
C++

// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef SHELL_GPU_DIRECT_GPU_RASTERIZER_H_
#define SHELL_GPU_DIRECT_GPU_RASTERIZER_H_
#include "flutter/flow/compositor_context.h"
#include "flutter/shell/common/rasterizer.h"
#include "flutter/shell/gpu/gpu_canvas.h"
#include "lib/ftl/memory/weak_ptr.h"
#include "lib/ftl/synchronization/waitable_event.h"
namespace shell {
class GPURasterizer : public Rasterizer {
public:
GPURasterizer();
~GPURasterizer() override;
void Setup(PlatformView* platform_view,
ftl::Closure continuation,
ftl::AutoResetWaitableEvent* setup_completion_event) override;
void Clear(SkColor color) override;
void Teardown(
ftl::AutoResetWaitableEvent* teardown_completion_event) override;
ftl::WeakPtr<Rasterizer> GetWeakRasterizerPtr() override;
flow::LayerTree* GetLastLayerTree() override;
void Draw(ftl::RefPtr<flutter::Pipeline<flow::LayerTree>> pipeline) override;
private:
std::unique_ptr<GPUCanvas> gpu_canvas_;
flow::CompositorContext compositor_context_;
std::unique_ptr<flow::LayerTree> last_layer_tree_;
PlatformView* platform_view_;
ftl::WeakPtrFactory<GPURasterizer> weak_factory_;
FTL_WARN_UNUSED_RESULT
bool Setup(PlatformView* platform_view);
void DoDraw(std::unique_ptr<flow::LayerTree> tree);
FTL_DISALLOW_COPY_AND_ASSIGN(GPURasterizer);
};
} // namespace shell
#endif // SHELL_GPU_DIRECT_GPU_RASTERIZER_H_